Portable piston pair coaxiality detection device
A detection device and coaxiality technology, which is applied to measurement devices, mechanical measurement devices, and mechanical devices, etc., can solve the problem that there is no portable piston pair coaxiality detection device and method, so as to improve after-sales service quality and piston Sub-use performance, wide application range, easy-to-achieve effects
Active Publication Date: 2018-11-30
JIANGSU XCMG CONSTR MASCH RES INST LTD
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Problems solved by technology
Unfortunately, at present, there is no portable piston pair coaxiality detection device and method suitable for after-sales service
Method used
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[0024] The present invention will be further described below in conjunction with specific embodiments.
[0025] Such as figure 1 Shown is a portable piston pair coaxiality detection device for detecting the coaxiality of the piston cylinder 8 to be tested, that is, the coaxiality between the piston and the cylinder bore; the detection device includes a controller 1, a bracket 2. Leg 3, floating body 4, spring 5, connecting shaft 6, positioning shaft 61, sensor 7;
[0026] The piston cylinder 8 includes a piston 81, a cylinder 82, and a piston rod 83; the piston 81 is fitted in the cylinder 82, a piston rod 83 is connected to one side of the piston 81, and a connecting shaft 6 is connected to the other side of the piston 81,
[0027] The connecting shaft 6 is arranged coaxially with the piston 81, the other end of the connecting shaft 6 is fixedly connected to the bracket 2, the axis of the connecting shaft 6 is arranged coaxially with the center line of the bracket, and the floating ...
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The invention discloses a portable piston pair coaxiality detection device, which comprises a bracket, a floating body, a floating body self-centering device, a connecting shaft and sensors, wherein the other side of a piston is connected with the connecting shaft; the other end of the connecting shaft is connected and fixed with the bracket; the floating body is movably located in the bracket; across recess is formed in the end face of one end of the floating body; the axial line of the floating body passes through the geometric center of the cross recess; the sensors are respectively arranged in four circumferentially uniformly distributed slots; the axial line of the floating body is located to the circle center of an inner hole of a cylinder, at a position where the floating body is located, through the floating body self-centering device; a locating shaft is connected and arranged on the side, close to the floating body, of the connecting shaft; the connecting shaft, the locatingshaft and the piston are coaxially arranged; the free end of the locating shaft is inserted into the center position of the cross recess of the floating body, is in contact with or senses the four sensors and can relatively move; and an overlapping degree, namely an overlapping degree of the circle center of the inner hole of the cylinder at a position where the floating body is located and the axial line of the piston, of the axis of the floating body and the axis of the locating shaft is obtained through the four sensors.
Description
Technical field [0001] The invention belongs to the technical field of coaxiality detection equipment, and specifically relates to a portable piston pair coaxiality detection device. Background technique [0002] Piston pair is one of the most widely used matching pair in machinery industry. For example, hydraulic cylinder piston and cylinder bore, concrete pumping system piston and conveying cylinder bore, etc. The coaxiality between the piston and the bore of the cylinder is the most important geometric accuracy index of the piston pair. During the working process of the piston pair, if the coaxiality is easily out of tolerance, the piston will be eccentrically worn, causing greater noise and vibration, and reducing the service life of the piston pair. In order to improve the quality of piston by-products, it is not only necessary to conduct coaxiality testing in the production process, but also to conduct coaxiality testing in after-sales service. Therefore, how to easily d...
Claims
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IPC IPC(8): G01B5/252
CPCG01B5/252
Inventor 陈新春蹤雪梅王灿
Owner JIANGSU XCMG CONSTR MASCH RES INST LTD